Sonos Roam Speaker

Sonos Roam is this little triangle-shaped speaker that fits in a jacket pocket. First time I heard it at a friend's place, I couldn't believe the bass coming out of something that weighs less than a pound. It connects to the Sonos system at home and switches to Bluetooth outside. Dual personality means I don't have to choose between a home speaker and a portable one. The rubbery finish feels grippy and solid in my hand. Battery lasts about 10 hours, enough for a full day at the park or a long study session in the library.